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Removing old vector math.

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Branimir Karadžić
2018-12-20 21:49:10 -08:00
parent 11729403f4
commit 7b98546fd7
4 changed files with 57 additions and 75 deletions
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26
examples/27-terrain/terrain.cpp
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@@ -357,30 +357,26 @@ public:
float ray_world[4];
bx::vec4MulMtx(ray_world, ray_eye, invViewMtx);
float ray_dir[3];
bx::store(ray_dir, bx::normalize(bx::load(ray_world) ) );
ray_dir[0] *= -1.0;
ray_dir[1] *= -1.0;
ray_dir[2] *= -1.0;
const bx::Vec3 rayDir = bx::mul(bx::normalize(bx::load(ray_world) ), -1.0f);
float pos[3];
cameraGetPosition(pos);
bx::Vec3 pos;
cameraGetPosition(&pos.x);
for (int i = 0; i < 1000; ++i)
{
bx::vec3Add(pos, pos, ray_dir);
pos = bx::add(pos, rayDir);
if (pos[0] < 0
|| pos[0] >= s_terrainSize
|| pos[2] < 0
|| pos[2] >= s_terrainSize)
if (pos.x < 0
|| pos.x >= s_terrainSize
|| pos.z < 0
|| pos.z >= s_terrainSize)
{
continue;
}
uint32_t heightMapPos = ( (uint32_t)pos[2] * s_terrainSize) + (uint32_t)pos[0];
if ( pos[1] < m_terrain.m_heightMap[heightMapPos] )
uint32_t heightMapPos = ( (uint32_t)pos.z * s_terrainSize) + (uint32_t)pos.x;
if (pos.y < m_terrain.m_heightMap[heightMapPos])
{
paintTerrainHeight( (uint32_t)pos[0], (uint32_t)pos[2]);
paintTerrainHeight( (uint32_t)pos.x, (uint32_t)pos.z);
return;
}
}